Nitrogen-Doped Oxygenated Molybdenum Phosphide as an Efficient Electrocatalyst for Hydrogen Evolution in Alkaline Media

Khan, Muhammad Waqas; Loomba, Suraj; Ali, Rashad; Mohiuddin, M.; Alluqmani, Ahmed; Haque, Farjana; Liu, Yongkun; Sagar, Rizwan Ur Rehman; Zavabeti, Ali; Alkathiri, Turki; Shabbir, Babar; Jian, Xian; Ou, Jian Zhen; Mahmood, Asif; Mahmood, Nasir

doi:10.3389/fchem.2020.00733

Cited by 17 publications

(7 citation statements)

References 45 publications

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“…Zhang et al synthesized the composite FeS 2 @CF-NS by the electrospinning method, in which FeS 2 nanoparticles were encapsulated in S and N co-doped carbon layers, and FeS 2 nanosheets were attached to the surface (Figure 1g). The FeS 2 @CF-NS yielded a capacity of 637.1 mA h g −1 after 400 cycles at 1 A g −1 and an excellent rate performance of 431.1 mA h g −1 at 5 A g −1 , as shown in Figure 1h,i [27]. The N and S-co-doped carbon layer alleviates the volume expansion during the reaction, and it also adsorbs more Na + for electrochemical reaction.…”

Section: Non-layer Structured Mcs 211 Fe-based Chalcogenides Iron Sul...mentioning

confidence: 91%

Innovative Materials for Energy Storage and Conversion

Luo

Rong

et al. 2022

Molecules

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The metal chalcogenides (MCs) for sodium-ion batteries (SIBs) have gained increasing attention owing to their low cost and high theoretical capacity. However, the poor electrochemical stability and slow kinetic behaviors hinder its practical application as anodes for SIBs. Hence, various strategies have been used to solve the above problems, such as dimensions reduction, composition formation, doping functionalization, morphology control, coating encapsulation, electrolyte modification, etc. In this work, the recent progress of MCs as electrodes for SIBs has been comprehensively reviewed. Moreover, the summarization of metal chalcogenides contains the synthesis methods, modification strategies and corresponding basic reaction mechanisms of MCs with layered and non-layered structures. Finally, the challenges, potential solutions and future prospects of metal chalcogenides as SIBs anode materials are also proposed.

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Section: Non-layer Structured Mcs 211 Fe-based Chalcogenides Iron Sul...mentioning

confidence: 91%

Innovative Materials for Energy Storage and Conversion

Luo

Rong

et al. 2022

Molecules

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“…Strategies to downsize Pt-based catalysts are reported to effectively reduce the cost of production and realize high performances, for example, single-layer Pt clusters anchored on ultrathin TiO 2 nanosheets were synthesized, presenting enhanced electrochemical performances compared with single Pt atoms, multilayer Pt nanoclusters and Pt nanoparticles . Besides, the pursuit of efficient electrocatalysts to achieve high current density at low overpotential drives the development of cost-effective non-platinum group hydrogen evolving catalysts. , Earth-abundant transition-metal phosphides (TMPs), such as the phosphide of Ni, Co, and Fe, have received great attention assigned to the favorable dissociation of H 2 . , Monometallic and bimetallic phosphides, such as CoP x , , NiP x , FeP x , Cu 3 P, , MoP, CoNiP x , and ZnNiP x , are highly active cocatalysts, which are generally applied to construct heterojunctions with semiconducting photocatalysts (g-C 3 N 4, ,,, CdS, CeVO 4, MoS 2 ) and metallic carbon nanomaterials . TMPs can be utilized as the interfacial electron transfer channels to accelerate the separation and transfer of photogenerated electron–hole pairs and suppress photocorrosion for boosting photocatalytic H 2 evolution. , On the other hand, TMPs have been widely considered as cost-effective alternatives for electrocatalysis due to their metallic characteristics, excellent electrical conductivity, and good electrocatalytic performance. , …”

Section: Introductionmentioning

confidence: 99%

MOF-Derived Zero-Dimensional Cu₃P Nanoparticles Embedded in Carbon Matrices for Electrochemical Hydrogen Evolution

et al. 2022

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Calcination of metal–organic frameworks (MOFs) to prepare porous-carbon-based nanocomposites has emerged as a facile and viable method for various applications. Here, the Cu-based HKUST-1 MOF is chosen as the synthesis precursor and growth template owing to its large surface area, high pore volume, as well as facile and large-scale preparation. Through the direct phosphorization at elevated temperatures, a hierarchical porous matrix consisting of HKUST-1 MOF-derived zero-dimensional (0D) Cu3P nanoparticles embedded on the surface of conductive carbon matrices is produced in a single step, in which its hydrogen evolving electrocatalytic performances are assessed as a representative application. The Cu3P/C-300 composite, at a loading mass as small as 0.1 mg cm–2, demonstrates an overpotential of 233 mV at 10 mA cm–2 and a Tafel slope of 91 mV dec–1 for hydrogen evolution with robust durability in a 1 M KOH solution, which are both lower than other metal phosphides directly dropcasted onto the conductive substrates (overpotentials mainly >250 mV at 10 mA cm–2 and Tafel slopes mainly >100 mV dec–1). Such an improved hydrogen evolution reaction performance is attributed to high specific surface area, improved interfacial contact with the conductive substrate, and the synergistic effects of the intrinsically active Cu3P nanoparticles of ultrasmall sizes with carbon matrices. The synthesis strategy may shed light on the development of cost-effective and stable electrocatalysts with excellent electrochemical performances in energy-conversion fields.

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“…[30][31][32][33] Element doping can effectively improve the HER performance of TMPs electrocatalysts, such as Fe-Co 2 P bundle of nanorods, [34] MnCo 2 P, [35] iron-doped cobalt phosphide nanoparticles (Fe-Co x P NPs), [36] and nitrogen-doped oxygenated molybdenum phosphide (N-MoP). [37] Forming of heterostructure with multi-component coordination is often used to improve electrocatalytic performance of TMPs. For example, CoP 3 /CoMoP heterogeneous nanosheet arrays,[38] Heterostructured arrays of Ni x P/S/Se nanosheets on Co x P/S/Se nanowires, [39] and CoP/Ti 3 C 2 MXene nanosheet [40] have achieved excellent electrocatalytic water splitting.…”

Section: Introductionmentioning

confidence: 99%

Development of a high-performance platinum-sensitized Co2P/NF electrode for hydrogen production from water decomposition

Deng

et al. 2022

Preprint

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Clean energy hydrogen, which can be produced by catalytic water splitting, has attracted more and more attention of researchers. Due to their low cost, abundance, and high efficiency, Transition metal phosphides (TMPs) have received more and more attention as ever-evolving catalytic materials instead of noble metal catalysts. In this work, The Cobalt hydroxide precursor was first grown on foam nickel (NF) by hydrothermal reaction, which was phosphated to Co2P though high temperature vapor phase. Then a small amount of Pt was anchored on the surface of Co2P, marked as Pt-Co2P/NF, by potential-cycling method. Both electrochemically active surface area (ECSA) and intrinsic catalytic activities of the catalyst were improved, with the performance of hydrogen evolution reaction (HER) increasing. The electrochemical test indicated that the Pt-Co2P/NF exhibited excellent electrocatalytic performance in alkaline electrolyte, and the overpotential was only 13mV and 133mV respectively at 10 and 1000 mA cm-2. The low Tafel slope of 28 mV dec−1 implied its rapid HER kinetics. Especially at high current density, Pt-Co2P/NF showed excellent catalytic activity and stability, which was possible to meet the requirements of hydrogen production industry. Coupled by first principle calculations based on density functional theory (DFT), a mechanism insight of the chemical transformation was provided, which could elucidate the origin of the platinum-sensitized behavior of HER.

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Nitrogen-Doped Oxygenated Molybdenum Phosphide as an Efficient Electrocatalyst for Hydrogen Evolution in Alkaline Media

Cited by 17 publications

References 45 publications

Innovative Materials for Energy Storage and Conversion

Innovative Materials for Energy Storage and Conversion

MOF-Derived Zero-Dimensional Cu₃P Nanoparticles Embedded in Carbon Matrices for Electrochemical Hydrogen Evolution

Development of a high-performance platinum-sensitized Co2P/NF electrode for hydrogen production from water decomposition

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Nitrogen-Doped Oxygenated Molybdenum Phosphide as an Efficient Electrocatalyst for Hydrogen Evolution in Alkaline Media

Cited by 17 publications

References 45 publications

Innovative Materials for Energy Storage and Conversion

Innovative Materials for Energy Storage and Conversion

MOF-Derived Zero-Dimensional Cu3P Nanoparticles Embedded in Carbon Matrices for Electrochemical Hydrogen Evolution

Development of a high-performance platinum-sensitized Co2P/NF electrode for hydrogen production from water decomposition

Contact Info

Product

Resources

About

MOF-Derived Zero-Dimensional Cu₃P Nanoparticles Embedded in Carbon Matrices for Electrochemical Hydrogen Evolution